261749128

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{503}}^1\times {\mathrm{2243}}^1$

素因数の和:2781

約数の個数: 32

約数和(自身を含む): 508939200

約数和(自身を除く): 247190072

約数列:

[1, 2, 4, 8, 29, 58, 116, 232, 503, 1006, 2012, 2243, 4024, 4486, 8972, 14587, 17944, 29174, 58348, 65047, 116696, 130094, 260188, 520376, 1128229, 2256458, 4512916, 9025832, 32718641, 65437282, 130874564, 261749128]

約数ペア:

[(1, 261749128), (2, 130874564), (4, 65437282), (8, 32718641), (29, 9025832), (58, 4512916), (116, 2256458), (232, 1128229), (503, 520376), (1006, 260188), (2012, 130094), (2243, 116696), (4024, 65047), (4486, 58348), (8972, 29174), (14587, 17944)]